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| Number | Title | Issue Date |
| 7384666 | Method and apparatus for fabricating quantum dot functional structure, quantum dot functional structure, and optically functioning device Fabrication of a quantum dot functional structure having ultra-fine particles homogeneously distributed in a transparent medium includes depositing such particles having a single particle diameter and uniform structure onto a substrate with the transparent medium. A... | 06/10/2008 |
| 7232687 | Multiple sorter monitor and control subsystem for flow cytometer An optical illumination and monitoring subsystem controls the operation of a flow cytometer having a carrier fluid that flows along a channel coupled to a droplet generator, which controls a point at which droplets break off from the carrier fluid, and a droplet sor... | 06/19/2007 |
| 7208023 | Dry dust control materials The present invention discloses methods to reduce dusting in bulk materials, such as coal. The method includes mixing with the bulk material either a fraction of the bulk material having an electrostatic charge opposite that of the remainder of the bulk material or ... | 04/24/2007 |
| 7119298 | Method for electrostatically separating particles, apparatus for electrostatically separating particles, and processing system An electrostatic separation apparatus for conductive particles and insulating particles with reduced separation time and improved separating capability, comprises a substantially flat-plate shaped bottom electrode (26) provided on lower side, a substantially ... | 10/10/2006 |
| 7105041 | Grid type electrostatic separator/collector and method of using same An electrical type grid electrostatic collector/separator removes particles from an air stream. The apparatus includes multiple parallel grids that act as the porous material, enclosed in a sealed compartment so that the entrained air flows parallel and between one ... | 09/12/2006 |
| 7045734 | Spark induction power conditioner for high tension physical separators A D.C. voltage altering device includes at least one spark induction power conditioner including a first electrode connectable to a high voltage D.C. power source and a second electrode spaced from the first electrode and forming a discharging gap therebetween. The ... | 05/16/2006 |
| 7041925 | Apparatus for the electrostatic separation of particulate mixtures Apparatus for the electrostatic separation of a mixture of particles that exhibit difference in electrical conductivity, comprising: a conductive surface to which conducting particles lose their charge; feeding means for feeding the mixture of particles onto the con... | 05/09/2006 |
| 7012209 | Method of gold separation and gold separation device A method of collecting gold by flowing water over a gold collecting medium located in a sluice to induce a positive surface charge on the gold collecting medium. Feeding gold laden material into the sluice with the flowing water to induce a negative surface charge o... | 03/14/2006 |
| 6951992 | Corona and static electrode assembly A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The coro... | 10/04/2005 |
| 6887291 | Filter devices and methods for carbon nanomaterial collection Filter devices and methods for collection of carbon nanomaterials, including fullerenes, produced in gas phase reactors are provided. The filter devices provide for in situ cleaning of filters to release captured product for collection. Product can be released and r... | 05/03/2005 |
| 6797908 | High-tension electrostatic classifier and separator, and associated method The electrostatic classifier and separator is supported by a housing and includes a corona classifier section for classifying particulate materials according to size. Corona element supplies mobile ions for bombarding particulate materials dropping down a passageway... | 09/28/2004 |
| 6727451 | Method and device for manipulating microparticles in fluid flows To manipulate microparticles in a fluid that intersects a first channel or several first channels as a stream, one or more microparticles (14) are exposed to electrical field barriers that change their direction from the direction of flow toward the edge of t... | 04/27/2004 |
| 6723938 | Electrostatic conductive induction separator A particle separator for the separation of particulate mixture having species that exhibit difference in electrical conductivity. The separator has a conductive surface including a separation zone, has feeder means for feeding the species to the separation zone, and... | 04/20/2004 |
| 6720514 | Plastic sorter A feed tray (22) for guiding tribo electrified plastic pieces (2) to a drum electrode (6) is provided with a vibrator (23), thereby making it possible to vibrate the plastic pieces (2) to form a thin uniform layer, and to reliably ... | 04/13/2004 |
| 6648975 | Method and apparatus for fabricating quantum dot functional structure, quantum dot functional structure, and optically functioning device The present invention is to fabricate a quantum dot functional structure having ultra-fine particles homogeneously distributed in a transparent medium by efficiently fabricating high-purity ultra-fine particles having a single particle diameter and unifor... | 11/18/2003 |
| 6496997 | Hard disk driver with an integrated structure for electrostatically removing dielectric particles generated during the operation, and electrostatic cleaning method for a hard disk driver An electrostatic cleaning structure of a hard disk driver is formed by a plurality of concentric conductive regions to which biasing pulse trains are supplied. Each biased conductive region generates an electric field attracting any dielectric particle. T... | 12/24/2002 |
| 6467628 | Plastic chip separator A device for electrostatically separating different kinds of crushed plastic pieces and correctly sorting them according to kind. The device has a classifying section (40) for classifying plastic pieces according to size, a frictional charging device (17)... | 10/22/2002 |
| 6454862 | Fine-particle classification apparatus and functional material production apparatus In the fine-particle classification apparatus of the present invention, a carrier gas velocity in a take-in section to introduce the aerosol to the fine-particle classification apparatus from the aerosol generation apparatus is increased so as to decrease... | 09/24/2002 |
| 6452126 | Electrostatic separation enhanced by media addition This invention relates to improving the separation efficiency in a triboelectric separator by adding media against which the components of the mixture will charge. As a result, random charging between the components of the mixture is reduced and controlle... | 09/17/2002 |
| 6415929 | Method of separating plastic When plastic pieces of plural different types of resins fed into a hopper are agitated to be triboelectrically charged, the plastic pieces are not imparted with sufficient amounts of charges or proper polarities which are required for separation of the pl... | 07/09/2002 |
| 6365856 | Particle separator and method of separating particles The invention relates to a particle separator and methods for separating the particles of a mixture. The apparatus of the invention employs two field elements to create a field in the space between the field elements. The surface contact of the particles ... | 04/02/2002 |
| 6359246 | Process and device for separating broken beans and shells The invention concerns a process as well as an apparatus for separating broken goods, consisting of broken nibs or beans and their shells and especially the separation of broken cacao beans (nibs) from the cacao shells in an electrostatic manner. In this ... | 03/19/2002 |
| 6225587 | Electrostatic separation of chaff from grain A method and device for the electrostatic separation of chaff from grain. An nonconductive continuous belt moves a mixture of grain and chaff past an ionizing electrode, which imparts an electrical charge to the grain particles and the particles of chaff ... | 05/01/2001 |
| 6168029 | Method for separating electrically conductive mineral components from electrically non-conductive mineral components of an ore An improved method for separating electrically conductive components of an ore or mineral sand from electrically non-conductive components of the ore or mineral sand is disclosed which includes processing the ore, adding a polymer, such as an anionic poly... | 01/02/2001 |
| 6140598 | Method for separating polymer-salt mixtures The present invention relates to a method of triboelectric separation of organic polymers and salts, specially organic polymers containing sulfur, such as polyarylene sulfides and a halogenide or a carboxylate of alkaline metals, alkaline earth metals, am... | 10/31/2000 |
| 5967331 | Method and apparatus for free fall electrostatic separation using triboelectric and corona charging A free-fall separator apparatus for mixed particles. The apparatus includes a screw feeder for triboelectrically charging the particles, a feed hopper for releasing the tribocharged particles in a laminar flow path between a first electrode structure and ... | 10/19/1999 |
| 5909813 | Force field separator A force field separator which can utilize either electric or magnetic fields to separate materials which are sensitive to those forces. As an electrostatic precipitator it produces higher separation efficiencies with smaller equipment and lower cost. As a... | 06/08/1999 |
| 5904253 | Belt separator system having improved belt geometry In a belt separator system for separating constituents of a mixture of particles, the belt having a leading deflective surface at an acute angle to the direction of belt travel so as to impart a transverse momentum component to the constituent in a direct... | 05/18/1999 |
| 5824389 | Micromachined microscopic particle selecting apparatus Various forms of micromachined electrostatic microconveyors and useful devices based thereon are described. In one embodiment, a tube shaped conveyor is formed by disposing conductors circumferentially about the exterior surface of the tube. The tube is f... | 10/20/1998 |
| 5503723 | Isolation of ultra small particles The present invention is a method and apparatus for further reducing the size of nanoparticles. Nanoparticles are defined as having an effective average particle size of less than about 400 nm. The present invention separates the nanoparticles further usi... | 04/02/1996 |
| 5006226 | Fluidized, dry bed, ore concentrator A fluidized, dry bed, ore concentrator in which a uniform air stream is utilized to fluidize ore particles within a region defined in part by two, moving, riffled surfaces. The particles are statically charged to enhance separation of particles within the... | 04/09/1991 |
| 4923581 | Toner recycling by counterflow A system and method for recovering charge-bearing solid pigment particles from a fluid dispersant in a liquid toner, wherein the system includes a particle-accumulating surface spaced apart from a complementary electrically biased electrode surface to def... | 05/08/1990 |
| 4882043 | Combination roll-type magnetic and electrostatic separator and method The disclosed invention provides method and apparatus for the separation of diamagnetic and paramagnetic particulate material. The invention utilizes a magnetic roll formed of either alternating permanent magnet and nonmagnetic spacer disc elements or alt... | 11/21/1989 |
| 4853010 | Multi stage gas scrubber A gaseous stream scrubber includes a cylindrical housing having a curved outer wall for confining therewithin a gaseous stream to be scrubbed. A flow inlet communicates with the housing and introduces the polluted gaseous stream into the housing, the inle... | 08/01/1989 |
| 4827574 | Device for removing short fibers This invention relates to a device for removing short fibers from a mass of ibers. A pair of perforated cylindrical bodies are opposed to each other with a predetermined spacing defined therebetween, and static electricity is applied across the perforated ... | 05/09/1989 |
| 4799452 | Liquid toner recycling system and method A toner recycling system having separate supply tank of clear liquid dispersant and tanks of color concentrate. The liquid dispersant is continuously circulated from its supply tank by a pump along lines to a toner applictor then back to the supply tank. ... | 01/24/1989 |
| 4605379 | Kinescope panel/mask frame assembly thumper and flush device and method An apparatus for removing undesirable particles from a kinescope panel/mask frame assembly includes a plurality of thumper arms. The arms have a cam follower at one end and a thumper at the other end. Cams on a rotatable shaft engage the cam followers to ... | 08/12/1986 |
| 4555933 | Dust assessment apparatus and method A gas containing dispersed particles with differing electrostatic charges is drawn through a gas channel between opposite charged plates before being split into equal gas flows by a flow divider. The equal gas flows leave the apparatus through exits which... | 12/03/1985 |
| 4400266 | Method and apparatus for separating solid phase from drilling mud A method for separating solid phase from drilling mud, comprising forming from drilling mud and adhesive layer on a rotary closed curvilinear surface partly placed in the drilling mud, with subsequent feeding of an ionized gas jet along a tangent line to ... | 08/23/1983 |
| 4351604 | Multi-color electrostatic copying apparatus First and second developing units (66), (67) apply toners of first and second colors respectively to a photoconductive drum (61) carrying a bipolar electrostatic image to form a bicolor toner image. A small amount of the first toner is scraped off the dru... | 09/28/1982 |
